QUADRUPOLE-QUADRUPOLE PLUS PAIRING INTERACTION APPLICATION TO TRANSITION CHARGE-DENSITY CALCULATIONS IN SOME EVEN-EVEN PALLADIUM NUCLEI

Here we report the microscopic variational model calculations for the recently available experimental data on transition charge densities (T CD) of Pd-104,Pd-106,Pd-108,Pd-110 nuclei employing ''quadrupole-quadr upole plus pairing interactions'' operating in the 2p(1/2), 1g(9/2), 2 d(5/2), 3s(1/2), 2d(3/2), 1g(7/2), and 1h(11/2) valance spaces. Result s for different p-n interaction strenghts are also given. It is seen t hat TCD, being sensitive to the strength parameters, can act as one of the best means for the fixing of these parameters accurately. The res ults of TCD calculations, for quadrupole excitations, using the p-n in teraction strength parameter chi(pi nu) = -0.0231 MeV b(-4), are in ex cellent agreement. The calculated static properties from the Hartree-F ock-Bogoliubov (HFB) model, employed for TCD calculations, are also in good agreement. Deivation in the TCD results for hexadecupole transit ions points toward the need for some modifications so as to simulate t he other interaction effects.